Year	Percent
2003-01-01	3.000
2004-01-01	3.700
2005-01-01	3.500
2006-01-01	3.600
2007-01-01	3.550
2008-01-01	4.300
2009-01-01	4.400
2010-01-01	3.825
2011-01-01	3.900
2012-01-01	4.575
2013-01-01	5.525
2014-01-01	5.975
2015-01-01	6.150
2016-01-01	6.025
2017-01-01	5.550